package com.zzyl.serve.service.impl;

import com.alibaba.fastjson2.JSON;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zzyl.common.constant.CacheConstants;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.serve.domain.NursingLevel;
import com.zzyl.serve.mapper.NursingLevelMapper;
import com.zzyl.serve.service.INursingLevelService;
import com.zzyl.serve.vo.NursingLevelVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 护理等级Service业务层处理
 *
 * @author ruoyi
 * @date 2025-04-27
 */
@Service
public class NursingLevelServiceImpl extends ServiceImpl<NursingLevelMapper, NursingLevel> implements INursingLevelService {
    @Autowired
    private NursingLevelMapper nursingLevelMapper;

    /**
     * 查询护理等级
     *
     * @param id 护理等级主键
     * @return 护理等级
     */
    @Override
    public NursingLevel selectNursingLevelById(Long id) {
        return this.getById(id);
    }

    /**
     * 查询护理等级列表
     *
     * @param nursingLevel 护理等级
     * @return 护理等级
     */
    @Override
    public List<NursingLevel> selectNursingLevelList(NursingLevel nursingLevel) {
        return getBaseMapper().selectNursingLevelList(nursingLevel);
    }

    /**
     * 新增护理等级
     *
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int insertNursingLevel(NursingLevel nursingLevel) {
        //删除缓存
        removeCache();
        return this.save(nursingLevel) ? 1 : 0;
    }

    /**
     * 修改护理等级
     *
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int updateNursingLevel(NursingLevel nursingLevel) {
        //删除缓存
        removeCache();
        return this.updateById(nursingLevel) ? 1 : 0;
    }

    /**
     * 批量删除护理等级
     *
     * @param ids 需要删除的护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelByIds(Long[] ids) {
        //删除缓存
        removeCache();
        return this.removeByIds(Arrays.asList(ids)) ? 1 : 0;
    }

    /**
     * 删除护理等级信息
     *
     * @param id 护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelById(Long id) {
        //删除缓存
        removeCache();
        return this.removeById(id) ? 1 : 0;
    }

    /**
     * 查询全部护理等级(加入redis缓存)
     *
     * @return
     */
    //注入redis对象
    @Autowired
    private StringRedisTemplate redisTemplate;
    @Override
    public List<NursingLevelVo> findAll() {
        //1.从redis缓存中查询护理等级数据
        String nursingLevelVoListJSON = redisTemplate.opsForValue().get(CacheConstants.NURSING_LEVEL_LIST_KEY);
        List<NursingLevelVo> nursingLevelVoList = null;
          //判断从redis中查出的json字符串是否为空
        if (StringUtils.isNotBlank(nursingLevelVoListJSON)){
            //不为空就转成集合直接返回给前端
            nursingLevelVoList= JSON.parseArray(nursingLevelVoListJSON, NursingLevelVo.class);
        }else{
        //2.如果从redis中没有查到数据,就从数据库查询
        nursingLevelVoList = this.lambdaQuery()
                .eq(NursingLevel::getStatus, 1).list()
                .stream().map(x -> {
                    NursingLevelVo nursingLevelVo = new NursingLevelVo();
                    BeanUtils.copyProperties(x, nursingLevelVo);
                    return nursingLevelVo;
                }).collect(Collectors.toList());
        //3.把从数据查询到的数据存入redis,方便下一次查询
            redisTemplate.opsForValue().set(CacheConstants.NURSING_LEVEL_LIST_KEY, JSON.toJSONString(nursingLevelVoList));
        }

        return nursingLevelVoList;
    }

    /**
     * 删除缓存中的护理等级列表全部数据
     */
    private void removeCache(){
        redisTemplate.delete(CacheConstants.NURSING_LEVEL_LIST_KEY);
    }
}
